Reversible road-roller



B.-POULS0N. REVERSIBLE ROAD ROLLER.

3 Sheets-Sheet -1.

(No Model.)

Patented May 21, 1895 Z/Zfiaaaea (No Model.) 3 Sheets-Sheet 2.

, B. POULSON.

REVERSIBLE ROAD ROLLER.

No. 539,442. Patented May 21, 1895.

fir/Ida 3 SheetsSheet 3.

(.No Model.)

B POULSON 'REVERSIBLBROAD ROLLER. No. 539,442. Patented May 21, 1895.

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BRITTON POULSON,

ATZENT OFFICE.

OF FORT WAYNE, INDIANA,ASSIGNOR TO FREDERICK O. AUSTIN, OF CHICAGO,ILLINOIS.

REVERSIBLE ROAD-ROLLER.

SPECIFICATION forming part of Letters Patent No. 589,442, dated May 21,1895.

/ Application filed December 8,1894. Serial No. 531,220. (No model.)

To allwhom it may concern.-

Be it known that I, BRITTON POULSON, a citizen of the United States,residing at Fort WVayne, in the county of Allen and State of Indiana,have invented a certain new and usef ul Improvement in ReversibleRoad-Rollers, of which the following is a specification.

My invention relates to road rollers of the kind in which a draftattachment can be shifted from one to the other of the two oppositesides of the roll, so as to permit the roll to be drawn alternately inopposite directions as a result of simply changing the directionof thedraft. Rollers of such nature are commonly termed reversible rollers.

In a reversible road roller characterized by my invention, the roll isarranged within a frame which is extended about the roll and fupportedby journals at opposite ends of the atter. shifting connection with saidframe, which latter provides a track along which the draft device can beshifted Without breaking connection between the two. By sucharrangement, the roll can be drawn along a street or road to any desiredextent, and upon arriving at the proposed limit of travel in onedirection, the draft can be shifted to the opposite side of the roll bydriving the team around to such side, since during such operation, thedraft-device will shift along the track-frame, and when the draft-deviceis at either side of the roll, it can be looked upon the track-frame byany suitable locking means. During said operation of shifting orreversing the draft, the track-frame will be held against undue tilt byone or more wheels employed in connection with the draft-device ashereinafter more fully set forth.

In conjunction with the roll I provide a brake which is arranged Withinthe roll and adapted for engaging the inner side of the latter. Ialsoarrange within the roll a receptacle having end journals which passthrough hubs at the ends of the roll and engage the track-frame, and asa desirable arrangement, one of said journals is made hollow so as topermit a rod for operating the brake to be extended through the same.

Prominent objects and advantages of the foregoing matters are simplicityof structure;

The draft-attachment or device has a economy in manufacture; and rapidand convenient work. Further details serving to increase the generalefficiency of thereversible roller are hereinafter described inconnection v with the accompanying drawings,in which Figure 1 is a sideelevation of a road-roller embodying my invention. Fig. 2 is a top planview of the same. Fig. 3 is a vertical section through the roll, frame,and a portion of the draft attachment, taken on line 00 at in Fig. 4.Fig. 4 is a section through the roll on line 1) at in Fig. 3. Fig. 5 isa detail view partly in elevation and partly in section, the sectionbeing on line 3 y in Fig. 4. Fig. 6 is a detail view partly in elevationand partly in section, the section being taken through one of thejournals on line a z in Fig. 4:.

The roll A, ispositioned within a horizontally arranged frame B, whichextends about the roll and while providing a connection between the rolland the draft-attachment or V device 0, it further provides a guide ortrack along which the draft attachment can slide or shift when it isdesired to reverse the direction of the draft. The frame B which I terma track-frame, isprovided with upper and lower continuous flanges 1, land the draft-attachment C is adapted to engage such flanges so thatwhile it can be moved along the frame it will maintain connection withthe same.

The draft-attachment desirably engages thetrack-frame at pointsseparated from one another to an extent suitable to provide a steady andreliable bearing, engagement, and to such end the draft-attachment has ayoke shaped portion whereof the arms 2, 2, are forked at their ends soas to embrace the upper and lower flanges 1 of the track-frame. The endsof said forked portions of the yokearms can have any suitably formedprojections arranged to lie alongside the inner vertical walls of theflanges 1, but as a preferred arrangement, said projections can consistof anti-friction rolls 3, whereby the draft-attachment will move easilyalong the track or guide-way provided by the double-flanged frame B.

The rear portion of the pole D is attached to a wheeled truck orcarriageE which while serving to uphold the pole, also at all timesupholds the draft-attachment. This truck or carriage could have a singlewheel, but it is preferably two-wheeled so as to afiord a firm andsteady support and also permit the draft attachment to steadily sustaina drivers seat F, which is arranged upon the forward portion of thedraft-attachment.

The carriage E is pivoted to the draft-attachment by a pivot bolt 4, sothat in driving the team around the roll for the purpose of shifting thedraft-device, the pole can swing laterally and independently of thedraft-attachment, and thereby permit the team to be easily driven in thepath of a circle about the roll and frame. The device shown fortemporarily locking the draft attachment upon the track-frame comprisesa swinging bar 5 pivoted on the draft-attachment and adapted to engagein some one of the shoulders or notches 6 formed in opposite sides ofthe track-frame. Other locking means can how ever be employed. TheWeight of the driver will obviously be sustained by the wheeled truck orcarriage, and hence, it will not inter fere with the operation ofshifting the draftattachment along the track-frame; also, the weight ofthe driver will tend to maintain the pole in a raised condition andthereby relieve the horses.

The roll A is made hollow, and contains a part cylindric receptacle Gwhich can be filled with water where the same is more convenient forweighting down the roll. The receptacle G has its ends or heads 7provided with journals 8 which engage the track-frame. As a simple anddesirable arrangement, these journals have squared or polygonal endswhich fit in squared bearings 9 in the frame, said bearings beingcompleted and closed underneath by plates 10 bolted to the frame andforming the lower sides of such bearings. In this way, the frame can bereadily fitted to and also removed from said journals, and when appliedto the same, rigid connection between the frame and receptacle will bemaintained.

The roll is provided at its ends with hubs 11 which are rigidlyconnected with the roll by spokes or radial arms 12. The journals 8extend through said hubs on the roll, and hence while the roll can turnfreely about the journals, the frame can tilt when the nature of theground requires such movement. Antifriction rolls 11 can also bearranged between said journals and hubs.

The brake proper H is in the nature of a cam or shoe which can beadjusted so as to engage and bind upon the inner surface of the roll.The rod 13 for operating this brake extending axially through oneof thejournals is axially forced for such purpose. The rod operatesas arook-shaft, and has at its inner end an eccentric 14 upon which thebrake is fitted to work after the manner of a strap and eccentric. Tosuch end the brake has an eye 15 fitted upon the eccentric on the rod.The

brake extends and works through a guide opening 16 in the receptacle,and the outer end of the rod is provided with an operating handle 17arranged alongside one of the bearings 9 which are provided on theframe. By properly swinging the handle, the eccentric movementhereinbefore described will move the shoe or brake device in a directionto bring its outer engaging end against the inner wall of the roll, andsince the bar which forms said brake or shoe is tangential to the axisof the rod 13, movement on the part of the roll will cause the brake tobind more firmly against its inner wall. In this way the roll can beheld against rotation whenever such arrestmcnt is found desirable, itbeing understood that by properly manipulating the brake-handle, thebrake can be put on light or heavy, according to need.

During the actof driving the team around the roll so as to reverse thedraft, the draft attachment will move easily and readily along the trackframe, regardless of such lateral deflection as may be given the pole bythe movement of the team, and during such operation, the truck orcarriage will sustain the draft-attachment and drivers seat, and preventundue tilt on the part of the trackframe.

I am aware that reversible rollers comprising a swinging draft-devicepivotally supported upon a frame at a point over the roll, are describedin Letters Patent of the United States as early as the year 1867, and innumerous subsequent patents, and I am also aware that in view of LettersPatent of the United States No. 69,175, dated September 24, 1867, itis amatter of common right to provide the frame of a roller with a brakearranged to engage the roll. I do not however, employ a pivoted draftdevice, but a trackframe arranged about the roll, and a draftattachmentor device having a shifting connection with such track-frame, and as amatter of further improvement I provide a novel construction andarrangement of brake.

The roll A herein shown, is solid from end to end, it being understoodhowever, that said roll could be composed of one or more sectionssecured together in any suitable way.

Nhat I claim as my invention is 1., A reversible roller comprising aroll arranged Within a track-frame, and a draft-attachment having ashifting connection with j the track-frame so as to permit the draft tobe shifted to either side of the roller, substantially as set forth.

2. A reversible roller comprising in combi- 3. A reversible rollercomprising in combination, a roll arranged within a track-frame,draft-attachment having a shifting connec- ICC tion with the track-frameand a pole having a jointed connection with said draft-attachment, forthe purpose set forth.

4.. A reversible roller comprising in combination, a roll arrangedwithin a track-frame, and a draft-attachmenthaving a shifting connectionwith the track-frame, and a pole and wheeled truck pivotally connectedwith the draft-attachment, substantially as described- 5. A reversibleroller comprising in combination, a roller arranged within atrack-frame, a draft-attachment carrying a drivers seat and having ashifting connection with the track-frame and a wheeled truck pivotallyconnected with the draft-attachment, substantially as described.

6. A reversible roller comprising a roll, arranged within a track framewhich extends about the roll and which is provided with a guide flange,and a draft-attachment having a shifting connection with the flangedtrackframe, substantially as described.

7. A reversible roller comprising a roll arranged withina flangedtrack-frame, and the.

shifting draft-attachment connected with the track-frame and havinganti-friction rolls engaging the flange thereof, substantially asdescribed.

8. The combination in a roller, of the hollow roll, and a brake arrangedwithin the hollow roll, substantially as described.

9. The combination in a roller, of a hollow roll, and a brake comprisinga rock-shaft extending within the roll and a shoe device eccentrioallyarranged upon the rock-shaft, substantially as described.

10. In a roller, the hollow roll, and a brake comprising the rock-shafthaving a handle upon one end and extending within the roll, and a shoedevice eocent-rically arranged upon the rock-shaft, substantially asdescribed.

11. In a roller, the combination of the hollow roll arranged within aframe and having end hubs, rigidly connected journals extending throughthe hubs of the hollow roll and engaging the frame, and a brakecomprising a rock-shaft extending through one ofsaid journals and at apoint within the roll carrying a shoe device, substantially asdesoribed.

12. A reversible roller comprising the hollow roll arranged within atrack-frame a receptacle arranged within the hollow roll and having endjournals which engage the track frame and serve as journals for thehollow roll and a brake adapted to engage the inner side ofthe hollowroll and comprising an operating rod which passes through one of saidjournals, substantially as described.

13. A reversible roller comprising the hollow roll arranged Within atrack-frame, a draft device having a shifting connection with thetrack-frame, and abrake arranged within the hollow roll, substantiallyas described.

14. A reversible roller comprising the hollow roll arranged within aflanged trackframe, a draft-device having a shifting connection with theflanged track-frame, and a brake device adapted for engaging the innerside of the hollow roll and arranged to permit the draft-device to beshifted to opposite sides of the roll, substantially as described.

BRITTON POULSON.

